CN101566338B - Method and device for combustion of solid phase fuel - Google Patents

Method and device for combustion of solid phase fuel Download PDF

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Publication number
CN101566338B
CN101566338B CN2009101351428A CN200910135142A CN101566338B CN 101566338 B CN101566338 B CN 101566338B CN 2009101351428 A CN2009101351428 A CN 2009101351428A CN 200910135142 A CN200910135142 A CN 200910135142A CN 101566338 B CN101566338 B CN 101566338B
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China
Prior art keywords
oxidant
burner
inlet
fuel
inlet port
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Expired - Fee Related
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CN2009101351428A
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Chinese (zh)
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CN101566338A (en
Inventor
T·埃克曼
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AGA AB
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AGA AB
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/006—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber the recirculation taking place in the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/002—Supplying water
    • F23L7/005—Evaporated water; Steam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/99001—Cold flame combustion or flameless oxidation processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00—Feeding arrangements
    • F23K2203/008—Feeding devices for pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07007—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber using specific ranges of oxygen percentage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention relates to a method for combusting a solid phase fuel, where the fuel is caused, by the help of a non-pneumatic feeding means (11), to be fed to an inlet opening (11a) in a burner device(10), where the burner device (10) is caused to comprise a first inlet (13a) for the oxidant through which an oxidant is caused to flow via a first supply conduit (13). The invention is characterised in that the first inlet (13a) for oxidant is caused to be arranged in the form of an opening surrounding the inlet opening (11a), in that the oxidant is caused to flow out through the opening (13a) w ith a velocity of at least 100 m/s, through a burner pipe (16) and out through a burner orifice (17) to a combustion space (18), so that the oxidant by ejector action causes the fuel to be conveyed through the burner pipe (16) and out through the burner orifice (17).

Description

The method and apparatus that is used for combustion of solid phase fuel
Technical field
The present invention relates to be used for the method and apparatus of combustion of solid phase fuel, more specifically, the present invention relates to use the burning of oxidant in burner apparatus with rich oxygen content.
Background technology
Usually when industrial burner internal combustion solid phase fuel, normally adopt pneumatic system, it comprises the carrier gas that is used for solid phase fuel is sent to from inlet the combustion space.For example, fuel can be the powder type such as fine coal, and can promote by the motion of carrier gas.Generally, this carrier gas is made up of air or nitrogen.Such combustion system can for example be used for heat industrial furnaces.
A problem that adopts this mode to exist is that the major part of air-flow in the burner is formed in carrier gas.Therefore, for example a large amount of ballasting gas with the nitrogen form must be heated, and this causes the reduction of efficient.
In addition, hope solid phase fuel and all-oxygen combustion device are used together, in other words, oxidant has high oxygen content in the all-oxygen combustion device.It is very high that the problem that adopts this burning to exist is that the flame temperature part becomes.Combine with a large amount of nitrogen that exist in the combustion zone, this causes NO in the burning gases xThe rising of level, this is undesirable, because mainly be the worry of considering rules and regulations and environment aspect except other reason.Simultaneously; Verified being difficult to is used for combustion of solid phase fuel so that can dilute fuel with furnace gas with traditional burner; The purpose of doing like this is in order to realize so-called flameless combustion; Be the burning of combustion zone diffusion,, thereby realize lower ignition temperature so that there is not visible flame basically.
Summary of the invention
Therefore, hope can realize the mode of combustion of solid phase fuel effectively, and its combustion product contains the NO of low concentration x
The invention solves the problems referred to above.
Therefore; The present invention relates to be used for the method for combustion of solid phase fuel, wherein, by means of non-pneumatic type charging gear fuel is given and to be expected the inlet port in the burner apparatus; Wherein, Make said burner apparatus comprise oxidant first inlet, make oxidant flow through said first inlet, it is characterized in that via first service; Said oxidant first inlet is set to around the form of the opening of said inlet port; Wherein, make said oxidant flow out, flow through burner tubes and flow out to the combustion space through said opening, see off through said burner tubes and through said burner spray orifice so that said oxidant transmits said fuel through jet-action through the burner spray orifice with the speed of 100m/s at least.
In addition, the present invention relates to according to said type of claim 13 and the device that has these characteristics substantially.
Description of drawings
To be elaborated to the present invention with reference to embodiments of the invention and accompanying drawing at present, wherein:
Fig. 1 is the sketch map according to burner apparatus of the present invention.
The specific embodiment
Fig. 1 shows according to burner apparatus 10 of the present invention, and it is suitable for implementing according to the method for the invention.This burner apparatus 10 is installed on the furnace wall of industrial furnace 20, and is oriented to and makes the combustion space 18 be associated with burner apparatus 10 be arranged in the heating space 21 of stove 20.Industrial furnace 20 can be used to heat various materials, for example glass, steel, non-ferrous metal and ceramic material.And, also can burner apparatus of the present invention be applied in for example heat supply factory, power station or thermal power plant, wherein, in the future the heat of spontaneous combustion apparatus 10 is for example as municipal heat supply and/or be converted into electric power.
Be provided with the charging gear 11 of feed screw or corresponding form, be fed to inlet port 11a with the solid phase fuel such as fine coal with predetermined quantity, this inlet port is arranged in the burner apparatus 10.This charging gear 11 can also otherwise design, but does not preferably adopt pneumatic actuation.
Oxidant feed system 12 branches into first service 13, second service 14 and the 3rd service 15 of supplying with oxidant.Conventional control device 19 is provided for controlling the supply through 12 pairs of oxidants of feed system.
First service 13 leads to the first inlet 13a, and this first inlet is set to around the form of the opening of inlet port 11a.The outlet of inlet port 11a and opening 13a is all in same burner tubes 16.In other words, oxidant flows out through opening 13a, and fuel is sent to inlet port 11a, and therefore oxidant and fuel converge in burner tubes 16.According to preferred embodiment, opening 13a around inlet port 11a, is preferably the rounded symmetry, the form of narrow opening of Zhou Yanshen outside along inlet port 11a with symmetrical manner.
According to another preferred embodiment, opening 13a centers on inlet port 11a with not rounded symmetrical manner, so that opening 13a compares wide or big on the top of inlet port 11a in the bottom of inlet port 11a.This will allow the more a large amount of oxidant of time per unit to flow through opening 13a in the bottom of inlet port 11a, thereby can keep the lower delivery rate of fuel and identical with the direction of generation flame in the stove 20.
Opening 13a can center on inlet port 11a fully, alternatively also can be with many holes, hole or similar type around inlet port 11a, so that opening 13a surrounds inlet port 11a fully.
Burner tubes 16 extends to burner spray orifice 17, and this burner spray orifice outside is to combustion space 18.According to highly preferred embodiment, the length of burner tubes 16 is approximately 4-6 times of electrical path length in the inlet port 11a, preferred about 5 times.This relation is verified can to produce the combustion characteristics that haves a great attraction in burner apparatus 10.
Oxidant at full speed flows out through opening 13a, is preferably 100m/s at least, but more preferably is the velocity of sound at least.This has produced jet-action, and oxidant is carried solid phase fuel secretly.After this, fuel disperses by means of oxidant stream and transmits in the mixture of oxidant and fuel, and this mixture flows to spray orifice 17 and flows out spray orifice 17 along burner tubes 16.
Towards the end of burner tubes 16, the convergent part 16a that increases is gradually arranged, cause burner tubes 16 at the internal diameter at spray orifice 17 places than the little 2%-30% of internal diameter at opening 13a place.The size of inlet port 11a, opening 13a, burner tubes 16 and convergent part 16a is applicable to application-specific, especially about the power of burner apparatus 10.Especially, the size of convergent part 16a is set to be used to realize specific final speed that the mixture of oxidant and fuel flows out through spray orifice 17 with this speed.Except that other factors, this speed depends on the geometry and the desirable combustion characteristic of combustion space 18, and this speed is selected based on the condition and the purpose of reality.
Therefore, solid phase fuel is under the condition that does not need independent inert carrier gas and be sent to combustion space 18.The substitute is, oxidant self is as carrier gas.So, need not heat any ballast material yet, thereby increase the efficient of burner apparatus 10.
In addition, according to preferred embodiment, the oxidant quantity of the time per unit that flows out through opening 13a is not enough stoichiometric proportion for the quantity of fuel that is fed into inlet port 11a.In other words, the flow through ignition mixture of burner tubes 16 is not enough stoichiometric proportions.
When mixture during, because from the radiant heat of combustion space 18, this mixture possibly lighted in burner tubes 16 near combustion space 18.Yet, because the relation of above-mentioned not enough stoichiometric proportion the and not have supplied of additional nitrogen with carrier gas, therefore, except that other result and with sacrifice NO xForm cost, this combustion reaction will cause the formation of CO.
According to preferred embodiment, additional oxidant flows out through one or several other oxidant inlet 14a via second service 14.This or this a few other inlet 14a are arranged in the face of combustion space 18 and next-door neighbour's burner spray orifice 17." next-door neighbour's burner spray orifice 17 " here means, and this inlet or these inlet 14a and burner spray orifice 17 are closer to each other, so that ignition mixture and additional oxidant mixing at once basically, in combustion space 18, to form independent continuous flame.
The additional oxidant quantity that flows out through this inlet or those inlet 14a is chosen as and can makes the quantity of the oxidant total amount of being supplied with and the fuel of supplying with reach the stoichiometric proportion balance.
In the flame that in combustion space 18, so forms, the fuel that from the ignition mixture that burner tubes 16 flows out, does not also have to consume is consumed, and the compound such as CO of incomplete oxidation also is consumed.In flame, produce the recirculation to a certain degree with furnace atmosphere owing to making via the additional oxidant of supplying with of inlet 14a, therefore said burning can be carried out under relatively low controlled temperature.This has caused the increase of flame size and the diffusion more that becomes, thereby reduces maximum combustion temperature and therefore also reduce NO xThe formation of compound.
In addition, preferably, additional oxidant flows out through this inlet or those inlets 14a with the speed that is at least the velocity of sound.Cause recirculation in combustion space 18, to increase forcefully like this, be attended by the advantage that preceding text are pointed out simultaneously.
According to another preferred embodiment; Additional oxidant flows out via the 3rd inlet 15a of the 3rd service 15 through one or several oxidant; This one or several the 3rd inlet face is provided with combustion space 18, and apart from burner nozzle 17 certain distance settings.
" apart from burner nozzle 17 certain distances " here mean; This inlet or those inlet 15a and burner spray orifice 17 are in a certain distance apart from one another; So that the additional oxidant that flows out from this inlet or those inlet 15a is not to mix with ignition mixture through burner nozzle 17 outflows at once, but these two or more materials flows are only seeing that from the angle of burner nozzle 17 entering in the combustion space 18 a distance just mixes.
In some applications, preferably should enter the mouth or those inlets 15a are set to be parallel to substantially the longitudinal axis of burner tubes 16.
In other is used; When especially relatively large and stove space 21 is relatively limited at burner apparatus 10; Preferably should enter the mouth or those the inlet 15a be arranged to; Make additional oxidant and ignition mixture flow at angle in the combustion space 18, thereby make these materials flows obtain common intersection apart from spray orifice 17 a distance from the direction that spray orifice 17 flows out.
According to preferred embodiment, this inlet or those inlet 15 location and about the longitudinal axis angulation of burner tubes 16 so that combustion space 18 in the independent continuous flame of formation.
In addition, preferably, additional oxidant flows out through this inlet or those inlets 15a with the speed that is at least the velocity of sound.Cause like this under the applicable situation ignition mixture stream and add oxidant stream point place or near, the recirculation in combustion space 18 increases forcefully.As a result of, flame becomes and more spreads, and maximum temperature is lower simultaneously, and can realize flameless combustion by this way, and except that other result, this causes NO xThe generation of compound is less.And, more be evenly distributed in the combustion space 18 from the heat of combustion reaction.
Additional oxidant is flowed out, as long as can make the oxidant total amount of being supplied with keep the balance of stoichiometric proportion substantially with the fuel of being supplied with through the combination inlet of next-door neighbour's burner spray orifice 17 one or several inlet 14a that is provided with and one or several inlet 15a that is provided with apart from burner nozzle 17 certain distances.Relation between separately gradient of quantity through oxidant in the oxidant stream of inlet 14a, 15a, these inlets geometric position and they each other, their flow velocitys separately or the like depends on the circumstances, and depends on actual condition and purpose.
Have in hope under the situation of flame of less, better qualification, the main use should inlet or those inlets 14a.On the other hand, if when hoping flameless combustion, then main the use should inlet or those inlets 15a.
Service 13,14,15 is connected on one or several feed system, thereby dissimilar oxidants can be supplied with through opening 13a and addition entry point 14a, 15a respectively.In this case, control device 19 can be set to control the supply of oxidant to different services 13,14,15, alternatively, also can walk abreast and use several different control unit 19.
Through adopting burner apparatus 10 of the present invention, but just usage ratio such as air have bigger oxygen content gas as oxidant, and do not cause too high partial combustion temperature.Therefore, preferred oxidant comprises that percentage by weight is at least 80% oxygen, and more preferably percentage by weight is at least 95% oxygen.So just cause the increase of burner apparatus 10 efficient.However, reduce ignition temperature under the help owing to the recirculation in combustion space 18 as stated, therefore, as stated, formed NO xQuantity do not increase.
Preceding text are illustrated preferred embodiment.Yet, it will be appreciated by one of skill in the art that and can carry out many improvement, and do not deviate from the scope of the invention said embodiment.Therefore, the present invention is not limited to said embodiment, but can change within the scope of the appended claims.

Claims (15)

1. method that is used for combustion of solid phase fuel; Wherein, supply fuel to the inlet port (11a) in the burner apparatus (10) by means of non-pneumatic type charging gear (11), wherein; Said burner apparatus (10) comprises first inlet (13a) that is used for oxidant; Oxidant flows out through said first inlet via first service (13), it is characterized in that, is set to the opening around said inlet port (11a) to first inlet (13a) that is used for oxidant; Make said oxidant flow out, flow through burner tubes (16) and flow out to combustion space (18) through said opening (13a), also see off through burner spray orifice (17) so that said oxidant transmits through burner tubes (16) fuel through jet-action through burner spray orifice (17) with the speed of 100m/s at least; Oxidant quantity not enough stoichiometric proportion for the quantity of fuel that supplies to said inlet port (11a) of the time per unit that flows out through said first inlet (13a); Make said oxidant comprise the oxygen of percentage by weight at least 80%.
2. method according to claim 1 is characterized in that, makes said opening (13a) center on said inlet port (11a) with rounded symmetrical manner.
3. method according to claim 1; It is characterized in that; Make said opening (13a) center on said inlet port (11a), so that make said opening (13a) compare wide or big on the top of said inlet port (11a) in the bottom of said inlet port (11a) with not rounded symmetrical manner.
4. according to aforementioned any described method of claim, it is characterized in that the diameter that makes said inlet port (11a) is the 1/6-1/4 of burner tubes (16) length between said inlet port (11a) and the said burner spray orifice (17).
5. according to aforementioned any described method of claim, it is characterized in that said oxidant is crossed said first inlet (13a) with the velocity flow that is at least the velocity of sound.
6. according to aforementioned any described method of claim; It is characterized in that; Said burner tubes (16) is designed with convergent part (16a), so that the little 2%-30% of internal diameter that the internal diameter ratio that said burner tubes (16) is located at said burner spray orifice (17) is located at said first inlet (13a).
7. according to aforementioned any described method of claim; It is characterized in that; Additional oxidant is flowed out through second addition entry point (14a) that is used for oxidant via the second additional service (14), and said second addition entry point is set in the face of said combustion space (18) and is close to said burner spray orifice (17).
8. according to aforementioned any described method of claim; It is characterized in that; Additional oxidant is flowed out through the 3rd addition entry point (15a) that is used for oxidant via the 3rd additional service (15), and said the 3rd addition entry point is set in the face of said combustion space (18) and apart from said burner spray orifice (17) certain distance.
9. method according to claim 8; It is characterized in that; The direction that said the 3rd addition entry point (15a) that will be used for oxidant is set to flow out from said burner spray orifice (17) with respect to the outflow mixture of fuel and oxidant at angle so that the oxidant stream that flows out from said the 3rd addition entry point (15a) is compiling in distance said burner spray orifice (17) a distance with the said logistics that mixes.
10. according to any described method in the claim 7 to 9, it is characterized in that, make one additional oxidant stream at least with the speed that is at least the velocity of sound from addition entry point (14a; 15a) flow out.
11. a device that is used for combustion of solid phase fuel wherein, is provided with non-Pneumatic feeding device (11), to give the inlet port of expecting in the burner apparatus (10) (11a) with fuel, wherein, said burner apparatus (10) comprises feed system (12; 19); Said feed system is set to oxidant is supplied to said burner apparatus (10) via first service (13) that is used for oxidant and first inlet (13a); It is characterized in that; Said first inlet (13a) that is used for oxidant is set to around the form of the opening of said inlet port (11a), said feed system (12; 19) be set to said oxidant with the form of stream with the speed of 100m/s at least through said first inlet, flow through burner tubes (16) and flow out burner spray orifice (17) and supply to combustion space (18), thereby and through the jet-action that produces by oxidant stream fuel transmitted through said burner tubes (16) and also to see off through said burner spray orifice (17); Said feed system (12; 19) be set to control the quantity of time per unit, so that the quantity of this oxidant is with respect to the not enough stoichiometric proportion of the quantity of fuel that supplies to said inlet port (11a) through the oxidant of said first inlet (13a) outflow; And said oxidant comprises the oxygen of percentage by weight at least 80%.
12. device according to claim 11 is characterized in that, the diameter of said inlet port (11a) is the 1/6-1/4 of burner tubes (16) length between said inlet port (11a) and the said burner spray orifice (17).
13., it is characterized in that said feed system (12 according to claim 11 or 12 described devices; 19) be set to via at least one additional service (14; 15) be used for the addition entry point (14a of oxidant through at least one that is provided with in the face of said combustion space (18); 15a) supply out additional oxidant stream, so that the oxidant total amount of being supplied with can become the quantity of stoichiometric proportion ground corresponding to the fuel of being supplied with.
14. device according to claim 13 is characterized in that, is used for the addition entry point (14a of oxidant; 15a) be set at angle, so that from said addition entry point (14a with respect to the direction of the outflow mixture of fuel and oxidant; The oxidant stream that 15a) flows out is compiling apart from said burner spray orifice (17) a distance with the said logistics that mixes.
15. according to any described device in the claim 11 to 14; It is characterized in that; Said burner tubes (16) is provided with convergent part (16a), so that the little 2%-30% of internal diameter that the internal diameter ratio that said burner tubes (16) is located at said burner spray orifice (17) is located at said first inlet (13a).
CN2009101351428A 2008-04-22 2009-04-22 Method and device for combustion of solid phase fuel Expired - Fee Related CN101566338B (en)

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SE0800919A SE532338C2 (en) 2008-04-22 2008-04-22 Method and apparatus for combustion of solid phase fuel
SE0800919-3 2008-04-22
SE08009193 2008-04-22

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CN101566338B true CN101566338B (en) 2012-07-04

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EP (2) EP2112434B1 (en)
JP (1) JP2009264731A (en)
KR (1) KR101608985B1 (en)
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